diff --git a/compiler/optimizing/code_generator_arm.cc b/compiler/optimizing/code_generator_arm.cc
index cf6f7e3..461319e 100644
--- a/compiler/optimizing/code_generator_arm.cc
+++ b/compiler/optimizing/code_generator_arm.cc
@@ -4330,7 +4330,7 @@
   if (needs_write_barrier) {
     // Temporary registers for the write barrier.
     locations->AddTemp(Location::RequiresRegister());  // Possibly used for ref. poisoning too.
-    locations->AddTemp(Location::RequiresRegister());  // Possibly used for read barrier too.
+    locations->AddTemp(Location::RequiresRegister());
   }
 }